try to add index-level annotations

Author: leafty

.github/workflows/build.yaml

@@ -46,6 +46,8 @@ jobs:
       - name: Docker meta
         id: meta
         uses: docker/metadata-action@v5
+        env:
+          DOCKER_METADATA_ANNOTATIONS_LEVELS: manifest,index
         with:
           images: ${{ env.CONTAINER_REGISTRY }}/${{ env.CONTAINER_IMAGE_NAME }}
           labels: |